Tobacco pipe and the like



Sept. 28, 1937. P. sEEHAUs TOBACCO PIPE AND THE LIKE Filed May 18, 193,4

INVENTOR Ow/W5 U wm A N H Dn E# TJ. ,A L ,U m Y B Patented Sept. 28, 1937 PATENT OFFICE f TOBQCO `PIPE AND THE LIKE -Paul Seehaus, Schwanden, Switzerland `Application May 1s, 1934, serial No, 726,269-

`In Germany May 22, 1933 y 3 Claims. Two complete typical embodiments and modiiications of detail of the subject matter of the invention are illustrated in the drawing.

Fig. 1 represents in longitudinal section and by 5 way of example, a straight pipe, the bore of which, the mouthpiece included, is filled throughout with sliding members. I is the fixed mouthpiece, 2 the stem of the pipe having a bore 3 which in the example shown opens into and above the bottom of the cavity 4 of the pipe bowl 5. 6, 6, etc. are the sliding members, one being shown on the point of being inserted, others being shown as already located in the bore, and still another, the foremost of the series, being shown as just having been ejected into the bowl.

In Fig. 2 the mouthpiece a, which is designed asa pusher for the sliding members, is represented, by way of example., as being withdrawable, that portion of the mouthpiece that extends into the bore being longer than the individual sliding members 6, 6, 6, so that, when a fresh member is being inserted, the mouthpiece already projects a certain distance inside the bore, and is guided thereby, when the forward impulse exerted on the entire column of members begins.

Fig. 3 shows a detachable independent mouthpiece Ibi with the sliding members 'l operating separately therein. In this modification the inserts l, 1, etc., are relatively long and the mouthpiece alone is adapted to receive these long inserts. While it is true that the other inserts 6, 8 and 9 are physically capable of being also insert- `ed from the bowl because they are short enough to do this, the usual procedure is nevertheless to insert the same in the outer end of the pipe stem and then push them forward by means of the mouthpiece or by other means toward the pipe bowl so that the inserts are finally ejected from the bore of the stem into the bowl.

Figs. 4 and 5 show several typical embodiments of sliding members which possess, according to the invention, suiiicient longitudinal solidity to stand the forward thrust, together with adequate transverse strength and an outer surface for scraping the sides of the bore. For example, the members 8, 8a, 8b, and 8c in Fig. 4 are slightly modified forms of a metallic member chiefly designed for cleaning and therefore made with a plurality of sharp circumferential edges, while the members 9, 9a, 9b, and 9c in Fig. 5 are made of wire gauze, of specially simple, cheap and suitable construction, and-as shown-adapted to be of varied cross-sectional design which is also true of member 8 and its modifications 8a, 8b, 8c. Members 8 and 9 are shown as longitudinal secticos taken horizontally lthrough members Quand 9a, respectively.

Inasmuch as in all cases fresh and clean sliding members are inserted into the mouthpiece or adjacent part of the stem, this latter always remains clean, and cannot be fouled by any contamination that progressively travels towards it as time goes on. Similarly the periodic and always dirty operation of cleaning with the aid of implements is rendered unnecessary by the absolutely clean operation of inserting clean sliding members when required. Moreover, the timely ejection of the used sliding members keeps the mouth of the bore where it opens into the bowl and also the entire bore itself, permanently clear and free from clogging.

'I'he sliding members may be so designed that they not only exert a cleaning action but also lter and especially dry the smoke by known methods, such as bythe aid of large surfaces. They may also be lled with known absorbents and may be composed of ceramic or other materials. As particularly shown in Fig. 5, the inserts may be double by having a smaller insert l0 disposed Within the. element 9 which may be of absorbent material or some other substance or structure serving as the outer portion of the insert. The smoker can change the members as often as he pleases and to suit the kind of tobacco used, it being also feasible to employ diiferent types of sliding members simultaneously if desired. The number of sliding members inserted in the bore and the extent to which they occupy the bore can easily be adapted to suit practical requirements. The bore of the stem can be provided, near the bowl of the pipe, with a closable opening on the under side through which the fouled sliding members are removed. Nevertheless, a particularly suitable arrangement, which is simple and cleanly to manipulate, consists in allowing the` bore to open into the bowl, at a short distance above the bottom of the latter, so that the sliding members are ejected into the cavity of the bowl, in which case the members are made of such a length that they will lie freely in the bowl when ejected and can be removed by simply inverting the bowl without any uncleanly manipulation.

In such case the cross section, and especiallyY the design of the end surfaces of the sliding members is such that they effectually shut off the comparatively wide stem from the bowl cavity and possess suflicient longitudinal rigidity and strength to ensure that in all cases the incrustation formed at the outlet into the bowl and opposbowl, the length of said inserts approximatelyv corresponding to the diameter ofthe bowl cavityl of the pipe at the place where said bore opens intosaid cavity, so as to allow said inserts to be individually and successively ejected from the bore of the pipe into said cavity bypushingnthe` wholev series of inserts forward in the pipe stem toward said bowl. e y

2. In a tobacco pipe comprising a bowl and a stem'provided with an axial bore, a series of tubular filtering and absorbent inserts in said bore having sufficient cross-section, transverse strength and outer surface to adapt said inserts to wipe and scrape the sides of the bore of said stem when pushed forward therein toward the bowl, and a detachable mouth-piece tting into said bore and serving as a pusher to effect the forward movement of the inserts in said bore and cause the foremost insert-to be ejected from the bore into the bowl of the pipe by inserting a fresh insert at the mouth-piece end of the stem and 1 ,:D11`Shing said series of inserts forwardly toward said bowl byrmeans of the mouth-piece.

. 53. A tobacco pipe or the like, according to claim v2, wherein that portion of the detachable mouth- "piece that extends into the pipe stem has the same diameter as the inserts and is longer than 'the individual inserts by a fraction of the length of said inserts.

PAUL SEEI-IAUS. 

